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1863
resultados
Última actualización
28/06/2025 [08:26:00]
Resultados 200 a 225 de 1863
Resumen de: US2025210622A1
Disclosed is a lithium ion battery. The lithium ion battery includes a positive electrode plate, a negative electrode plate and a separator. The positive electrode plate, the separator and the negative electrode plate are stacked successively and then wound from inside to outside. The positive electrode plate includes a positive electrode current collector. At least one functional surface of the positive electrode current collector is provided with a protective layer. A surface of the protective layer away from the positive electrode current collector is provided with a positive electrode active layer. A length of the protective layer is greater than a length of the positive electrode active layer in a winding direction of the positive electrode current collector. According to the present application, by increasing a protection area of the protective layer for a positive electrode current collector, safety performance of the lithium ion battery is improved.
Resumen de: US2025210626A1
A lithium secondary battery may include an electrode assembly including a positive electrode, a negative electrode, and a separator, an electrolyte, and a battery case accommodating the electrode assembly and the electrolyte. The negative electrode includes a negative electrode active material layer containing graphite and a Si/C composite. The positive electrode includes a positive electrode active material layer containing a lithium transition metal oxide represented by Formula 1. The graphite and the Si/C composite are present in a weight ratio of 93.1:6.9 to 99.9:0.1 in the negative electrode active material layer. The electrolyte includes a non-fluorinated saturated cyclic carbonate and a fluorine-based compound in a weight ratio of 40:1 to 40:20, and the fluorine-based compound is present in an amount of 1 wt % to 5 wt % with respect to a total weight of the electrolyte.Li1+x1Niy1Coz1Mnw1M1v1O2 Formula 1wherein all the variables in Formula 1 are described herein.
Resumen de: US2025210754A1
The present disclosure provides a hot management component and manufacturing method thereof, a battery, and an electric device, relating to the field of battery technology. The hot management component includes a main body part and a shielding member. The main body part is bent to form multiple connecting regions, and the multiple connecting regions are connected sequentially to form an accommodating space for accommodating battery cells. The connection position of two adjacent connecting regions forms a corner region, and an interior of the main body part is provided with a medium channel passing through the corner region. An Opening is provided at a position corresponding to the medium channel on a side of the corner region away from the accommodating space, and the opening is in communication with the medium channel. The shielding member is connected to the main body part so as to seal the openings.
Resumen de: US2025211001A1
A power source device includes: a secondary battery; a discharging switch connected in series with the secondary battery; a current limiting switch that is connected in parallel with the discharging switch, and is switched to an on state to supply a limited current to a load in a pre-discharging period in which the discharging switch is in an off state; a current detection circuit that detects a current of the secondary battery; and a controlling circuit that controls the discharging switch and the current limiting switch to be turned on or off. The controlling circuit includes a failure diagnosis circuit for the discharging switch, and the failure diagnosis circuit compares a detection current of the secondary battery detected by the current detection circuit with a threshold set to a value larger than the limited current in the pre-discharging period, and when the detection current is larger than the threshold, determines that the discharging switch has an off impossible failure in which the discharging switch cannot be switched off.
Resumen de: US2025210750A1
A battery module for a battery pack includes a plurality of battery cells, having at least one group of stacked prismatic battery cells which are stacked next to each other in the longitudinal direction. A first and a second separate longitudinally extending beam member are offset from each other in the width direction. A plurality of separate crossbeam members are offset from each other in the longitudinal direction, wherein each crossbeam member extends in the width direction and wherein the plurality of separate crossbeam members mechanically connects the first and second separate longitudinally extending beam members together. A cooling plate bottom member is provided at a bottom portion of the first and second separate longitudinally extending beam members and the plurality of separate crossbeam members.
Resumen de: US2025210653A1
A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt (Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.
Resumen de: US2025210624A1
A positive electrode for a lithium-sulfur battery, a positive electrode comprising the same, a lithium secondary battery comprising the positive electrode, and a method for preparing a positive electrode slurry are provided. The positive electrode comprises a positive electrode active material, a first conductive material and a second conductive material, wherein the positive electrode active material comprises a sulfur-carbon composite comprising a porous carbon material and sulfur (S), the first conductive material comprises fibers having an average particle size of 5 μm or less and the second conductive material comprises secondary particles including agglomerates of two or more primary particles of carbon nanotubes (CNT), and the combination of the conductive materials provides improved output characteristics and capacity of the lithium secondary battery.
Resumen de: US2025210615A1
An electrode film manufacturing method includes performing adhesion of polyvinylidene difluoride to active material particles, mixing the active material particles, to which the polyvinylidene fluoride adheres, with polytetrafluoroethylene to obtain a mixture, and fiberizing the polytetrafluoroethylene in the mixture. A process of the fiberization is carried out at a temperature of 50° C. or higher, and the mixture does not contain a solvent.
Resumen de: US2025210618A1
A method of manufacturing a collector with an electrode of the present disclosure has a step of fabricating a collector with a coating, and a step of fabricating a collector with an electrode. In fabricating the collector with a coating, a composite material slurry is coated on a collector that is a sheet-shaped collector having plural through-holes or is a web-shaped collector having plural through-holes, and a collector with a coating, which has at least one coating of the composite material slurry, is fabricated. In fabricating the collector with an electrode, cooling air is blown onto the through-holes simultaneously with irradiating of light for heating onto the coating of the collector with a coating, and drying the coating to form a positive electrode layer or a negative electrode layer is formed, and the collector with an electrode is fabricated.
Resumen de: US2025210644A1
A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention is a composite oxide which is represented by general formula LixTMtmMyO2-fFf and has a crystal structure that belongs to the space group Fm-3m; and in the general formula, TM represents a transition metal, M represents a non-transition metal, and if Q=2×tm×(1−(1−f/2)5), Q≥1 is satisfied. With respect to a dV/dq-SOC curve showing the relationship between the state of charge SOC and dV/dq of a half cell that contains this composite oxide, the dV/dq-SOC curve being obtained by charging the half cell with a charging current of 0.1 C at 25° C. to an end voltage within the range of 4.7 V to 4.95 V, there is one or more peaks within the SOC range from 40% to 70%.
Resumen de: US2025210623A1
A negative electrode for a nonaqueous electrolyte secondary battery. The negative electrode has a negative electrode mixture layer containing a negative electrode active material. The negative electrode active material includes a first material containing silicon and a second material having a reaction potential with Li higher than silicon. The content Cs of the silicon in the negative electrode mixture layer is 10 mass % or more.
Resumen de: US2025210789A1
Disclosed is a battery pack that includes: a casing, which includes a lower housing; a battery cell stack, which includes multiple pouch battery cells, and includes two opposite tab sides and side surfaces adjacent to the tab sides, the battery cell stack is disposed in the lower housing; a foaming adhesive, which is filled and connected between the tab side of the battery cell stack and the lower housing; side plates, which are fixed on the side surface of the battery cell stack; a flexible circuit board assembly, which includes: a flexible printed circuit board and an insulating connecting sheet, the flexible printed circuit board is fixedly connected to the battery cell stack through the insulating connecting sheet; a battery management system; a connecting assembly, which is communicatively connected between the battery management system and the flexible printed circuit board, and the connecting assembly is fixedly connected to the side plates.
Resumen de: US2025210652A1
A positive electrode active material for a secondary battery which includes a: nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 2: Equation 2 Δ size (| crystallite sizeIB-crystallite sizeFWHM|) ≤20, wherein, in Equation 1 and Equation 2, crystallite sizeFWHM is a crystallite size obtained by calculating from X-ray diffraction (XRD) data using a full width at half maximum (FWHM) method, and crystallite sizeIB is a crystallite size obtained by calculating from XRD data using an integral breadth (IB) method.
Resumen de: US2025210783A1
A battery pack module related to one example of the present invention comprises a first battery pack including a plurality of first fitting parts, a second battery pack including a plurality of second fitting parts and disposed to be adjacent to the first battery pack, and a plurality of fixing members coupled together to the first and second fitting parts to connect the first and second battery packs, wherein each fixing member comprises two first pins, in which some regions are fixed to the first fitting parts of the first battery pack and other regions are each fit-coupled to the second fitting parts of the second battery pack, and a second pin connecting the two first pins.
Resumen de: US2025210785A1
A connection assembly, an energy storage cabinet, and an energy storage system are disclosed. When the cabinet is closed, a locking piece is connected between a first limiting piece and a second limiting piece, so as to connect a door and a cabinet body. When the door is impacted, the locking piece connects the door and the cabinet body, thereby improving stability of connection between the door and the cabinet body.
Resumen de: US2025210781A1
A battery pack comprising: one or more battery modules and a battery module sub assembly; a battery pack management arrangement for monitoring and/or controlling the operation of the battery pack; a battery pack fluid connection assembly for connecting one or more ducts of the battery pack to a source of thermal management fluid; and a battery pack electrical connection arrangement for electrically connecting the battery pack to an external load, the battery pack being modular so as to be adaptable to suit multiple design requirements by adjusting the size, number, location and/or orientation of one or more battery modules within the battery pack.
Resumen de: US2025210648A1
A high-voltage low-cobalt ternary positive electrode material has a general formula LiaNibCocMndO2, where 0.97≤a≤1.1, 0.5≤b≤0.76, 0≤c≤0.1, 0.24≤d≤0.5, b+c+d=1, and c<0.35d. Compared with the prior art, the positive electrode material can be used at a higher voltage compared to other ternary positive electrode materials which have the same nickel content as the positive electrode material, such that the energy density is increased, and because the positive electrode material has a smaller change in size, the cracking and powdering of the positive electrode material are avoided, the service life of the material is prolonged, and the safety performance of the material is improved.
Resumen de: US2025210616A1
A negative electrode includes a negative electrode active material layer that contains a silicon-based active material, wherein based on a total thickness defined as a distance between opposing first and second surfaces of the negative electrode active material layer, when a cohesion strength is measured respectively at positions corresponding to 25%, 50%, and 75% of the total thickness from the first surface, an average of the measured cohesion strengths ranges from approximately 1 MPa to 20 MPa, a deviation of the measured cohesion strengths is equal to or less than approximately 140%, and a vertical resistance ranges from approximately 0.005Ω to 0.3Ω.
Resumen de: US2025210635A1
A positive electrode material for a lithium-ion battery, a method for preparing same, and a lithium-ion secondary battery including same. The positive electrode material includes a high-nickel material and a coating layer on the surface of the high-nickel material, wherein the coating layer comprises compound CxHy−nOzLin (I) of formula (I) and compound CxHy−n−1 OzLin+1 (II) of formula (II), wherein x, y, z and n are each independently integers where 1≤x≤10, 2≤y≤20, 2≤z≤12, and 1≤n≤3.
Resumen de: US2025210631A1
A positive electrode material contains a porous carbon material, a positive electrode active material containing sulfur, and a lithium halide, wherein at least a part of the positive electrode active material and at least a part of the lithium halide are placed inside the pores of the porous carbon material. The positive electrode material provides a means for further reducing an internal resistance of a secondary battery.
Resumen de: US2025210619A1
The present technology relates to an electrode slurry coating method and apparatus comprising a pressure adjustment member for adjusting the discharge pressure of slurry, and enables electrode slurry to be discharged under constant pressure even when a coated part and an uncoated part are repeatedly formed on a current collector layer.
Resumen de: US2025210696A1
To provide a solid electrolyte layer configured to suppress an increase in resistance, a solid-state battery, and a method for producing the solid-state battery. A solid electrolyte layer for solid-state batteries, wherein the solid electrolyte layer comprises a nonwoven fabric and a solid electrolyte; wherein the solid electrolyte is disposed in an interior of the nonwoven fabric; wherein the solid electrolyte is solid electrolyte particles; and wherein a ratio of an average fiber diameter of the nonwoven fabric to an average particle diameter of the solid electrolyte particles, is 25 or more and 100 or less.
Resumen de: US2025210770A1
The present disclosure provides an energy storing device, including: a box, having a battery cabin; at least one column of batteries, arranged inside the battery cabin, wherein each column of batteries includes multiple batteries arranged along the height direction of the box; and at least one control box, arranged inside the battery cabin. In the technical solution of the present disclosure, the battery and control box of the energy storing device are both set inside the battery cabin of the box, and their overall structure is simpler.
Resumen de: US2025210767A1
A battery pack is configured to power a power tool and a charging combination. The battery pack includes a housing; and a cell assembly disposed in the housing and including at least one cell unit; where a cell unit of the at least one cell unit includes at least one charged surface to which a surfactant is attached. According to the above technical solutions, the battery pack can have good insulation, a strong anti-rust ability, and high safety performance between a positive electrode and a negative electrode.
Nº publicación: US2025210814A1 26/06/2025
Solicitante:
SK INNOVATION CO LTD [KR]
SK IE TECH CO LTD [KR]
SK INNOVATION CO., LTD,
SK IE TECHNOLOGY CO., LTD
Resumen de: US2025210814A1
Provided are a separator having significantly improved withstand voltage characteristics and a lithium secondary battery including the same. The separator includes a porous substrate and an inorganic particle layer including a binder and inorganic particles formed on at least one surface of the porous substrate, wherein the separator has a ratio of a breakdown voltage (kV) of the separator to an overall average thickness (μm) of the separator of 0.15 kV/μm or more, has a peak in a range of 1070 cm−1 to 1082 cm−1 in a spectrum by Fourier transform infrared spectroscopy (FT-IR), has heat shrinkage rates in the machine direction and in the transverse direction of 5% or less as measured after being allowed to stand at 150° C. for 60 minutes, and has ΔGurley permeability of 100 sec/100 cc or less.
BOPI
Sede Electrónica
